Signal switch with back locking and self-locking structure

Abstract

The invention discloses a signal switch with a back locking and self-locking structure. The signal switch comprises a body, wherein the body is provided with an accommodating cavity; the movable frame reciprocates in the first direction; the movable frame comprises a connecting rod and an actuating piece, one end of the connecting rod is connected with the actuating piece, the other end of the connecting rod penetrates through the body and extends to the outside, and the actuating piece is provided with a first matching part and a second matching part; the first reset piece applies acting force to the movable frame; the bolt lock reciprocates in the second direction; the bolt lock comprises a lock block and a bolt rod, the lock block is connected with one end of the bolt rod, the other end of the bolt rod penetrates through the body and extends to the outside, the lock block is provided with a first limiting part and a second limiting part, and the first limiting part and the second limiting part are located in different directions; the second reset piece applies acting force to the bolt lock; according to the structure, the synchronous limiting effect is achieved in multiple different directions, limiting in the counter locking and self-locking process is ensured, and the limiting strength and the limiting effect are improved.

Description

Technical Field

[0001] The present invention relates to the field of electrical technology, and in particular to a signal switch with an anti-locking and self-locking structure. Background Art

[0002] For example, the Chinese invention patent, publication number "CN111161972A", patent name "A push button switch", discloses an anti-self-locking structure. In this patent application, different functions such as anti-locking and self-locking are disclosed. However, the problem with this structure is that the locking member and the lock tongue only form a locking effect in one direction. This structural setting leads to low locking strength and the risk of lock tongue breakage. Summary of the invention

[0003] Therefore, the technical problem to be solved by the present invention is how to ensure the locking strength in different functions. To this end, a signal switch with an anti-locking and self-locking structure comprises:

[0004] A body, wherein the body is provided with a receiving cavity;

[0005] A movable frame, the movable frame is accommodated in the accommodating cavity, the movable frame reciprocates along a first direction, and the movable frame drives the movable contact assembly; the movable frame includes a connecting rod and an actuating member, one end of the connecting rod is connected to the actuating member, and the other end of the connecting rod passes through the body and extends to the outside, and the actuating member is provided with a first matching portion and a second matching portion;

[0006] a first restoring member, the first restoring member being accommodated in the accommodating cavity, the first restoring member cooperating with the movable frame, and the first restoring member applying a force to the movable frame;

[0007] A bolt lock, the bolt lock is accommodated in the accommodating cavity, and the bolt lock reciprocates along the second direction; the bolt lock comprises a lock block and a bolt rod, the lock block is connected to one end of the bolt rod, and the other end of the bolt rod passes through the body and extends to the outside, the lock block is provided with a first limiting portion and a second limiting portion, and the first limiting portion and the second limiting portion are located in different directions;

[0008] a second restoring member, the second restoring member being accommodated in the accommodating cavity, the second restoring member cooperating with the latch, and the second restoring member imparting a force to the latch;

[0009] In the first state, the first limiting portion cooperates with the first matching portion, the second limiting portion cooperates with the second matching portion, the latch restricts the movable frame from moving in the first direction, and the switch is in the disconnected position; the cooperation between the first limiting portion and the first matching portion, and the second limiting portion and the second matching portion is released, the movable frame moves in the first direction, the switch is in the connected position, the first limiting portion cooperates with the first matching portion, the second limiting portion cooperates with the second matching portion, and the latch restricts the movable frame from moving in the first direction, forming a second state.

[0010] The first limiting portion and the second limiting portion are vertically arranged, and the first limiting portion is connected to the second limiting portion.

[0011] The first matching part is provided with a giving groove, a second clamping groove, and a hook, the side wall of the giving groove is provided with a first clamping groove, and the hook is located at one side of the second clamping groove; the second matching part is provided with a support block; the first limiting part is provided with a baffle and a first protrusion, the first protrusion is connected to the baffle, and the baffle is provided with a limiting rib; the second limiting part is provided with a slide groove and a second protrusion, and the second protrusion is located at one side of the slide groove; in the first state, the first protrusion is against the first clamping groove, and the support block is against the second protrusion; when the bolt is pressed, the baffle is located in the giving groove, and the baffle slides relative to the giving groove, the support block is located on the movement trajectory of the slide groove, and the support block slides relative to the slide groove; in the second state, the limiting rib is against the second clamping groove, and the support block is against the bottom surface of the second limiting part.

[0012] The top surface of the clearance groove on one side close to the outer side wall of the main body exceeds the top surface of the hook.

[0013] The limiting rib extends to the first protrusion.

[0014] The limiting rib is provided with a first inclined surface, the hook is provided with a second inclined surface, and the first inclined surface matches the second inclined surface.

[0015] The movable frame is provided with a chamber opening downward, and one end of the first reset member extends to the chamber and abuts against the movable frame.

[0016] The maximum stroke of the movable frame exceeds the stroke of the movable frame moving to the switch-on position.

[0017] The first restoring member is a straight spring or a conical spring.

[0018] It also includes a circuit board, and the movable frame is fixed with a brush, and the brush slides on the circuit board.

[0019] The movable frame is provided with a fixing groove, the fixing groove is provided with a fixing block, the brush is accommodated in the fixing groove, and the brush is connected and fixed to the fixing block.

[0020] The technical solution of the present invention has the following advantages:

[0021] 1. The present invention provides a signal switch with an anti-locking and self-locking structure. Compared with the prior art, the structure forms a synchronous limiting effect in multiple different directions, ensures the limiting in the anti-locking and self-locking process, improves the limiting strength and limiting effect, and also increases the service life of the signal switch.

[0022] 2. The present invention provides a signal switch with a reverse locking and self-locking structure, wherein the first limiting portion and the second limiting portion of the locking block are respectively connected to the movable frame, thereby enhancing the locking stability between the locking block and the movable frame.

[0023] 3. The signal switch with anti-locking and self-locking structure provided by the present invention forms locking cooperation in different states through the ingenious coordination of multiple structures, meets the functional requirements of anti-locking, self-locking, etc., and improves the overall limiting effect.

[0024] 4. The signal switch with anti-locking and self-locking structure provided by the present invention allows the side wall of the positioning groove to form a limiting effect to prevent the locking block from excessive movement.

[0025] 5. The signal switch with anti-locking and self-locking structure provided by the present invention has an increased length of the limiting rib and an increased contact area, so that the limiting rib cooperates better with the second slot to form a limiting effect.

[0026] 6. The signal switch with anti-locking and self-locking structure provided by the present invention has the coordination between the inclined surfaces, which improves the reliability of the connection between the limiting rib and the second slot and the hook.

[0027] 7. The signal switch with anti-locking and self-locking structure provided by the present invention has a chamber setting to avoid distortion and deformation of the first reset member, limit the activity space of the first reset member in the moving direction of the movable frame, and ensure the reliability of the reset of the movable frame.

[0028] 8. The present invention provides a signal switch with an anti-locking and self-locking structure, in which the movable frame is set to an over-travel, and the movable frame has an over-travel downward along a first direction, so that after the movable frame moves into place, it reaches the self-locking position, and pressing the movable frame again can release the limit lock between the movable frame and the bolt, thereby avoiding the phenomenon of the limit lock being stuck after self-locking.

[0029] 9. The present invention provides a signal switch with an anti-locking and self-locking structure. The brush moves on the circuit board to achieve a signal transmission effect, and the circuit board can know the position to which the movable frame moves.

[0030] 10. The present invention provides a signal switch with an anti-locking and self-locking structure. The setting of the fixing groove and the fixing block can better achieve the fixing effect of the brush. The brush here is also provided with an elastic extension part, which is against the side wall of the fixing groove to form an elastic fixing effect, so that the brush is fixed in different directions, thereby improving the fixing strength of the brush. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0032] Figure 1 A schematic diagram of the structure of a signal switch with anti-locking and self-locking structures provided by the present invention;

[0033] Figure 2 An exploded diagram of a signal switch with anti-locking and self-locking structures provided by the present invention;

[0034] Figure 3 A schematic diagram of a local structure with an anti-locking and self-locking structure provided by the present invention;

[0035] Figure 4 A schematic diagram of the structure of the cooperation between the dynamic contact component and the static contact component provided by the present invention;

[0036] Figure 5 A schematic diagram of the structure of the bolt cover and the bolt lock provided by the present invention;

[0037] Figure 6 A schematic diagram of the structure of the bolt provided by the present invention;

[0038] Figure 7 A schematic diagram of the structure of the latch provided by the present invention from another angle;

[0039] Figure 8 A schematic diagram of the structure of the movable frame provided by the present invention;

[0040] Fig. 9 A schematic diagram of the structure of the first state provided by the present invention;

[0041] Fig.10 A schematic diagram of the structure of the movable frame and the latch in cooperation with each other in the first state provided by the present invention;

[0042] Fig.11A schematic structural diagram of another angle of cooperation between the movable frame and the latch in the first state provided by the present invention;

[0043] Fig.12 A schematic diagram of the structure provided by the present invention moving to the overtravel position;

[0044] Fig.13 A schematic diagram of the structure of the movable frame and the latch in the overtravel position provided by the present invention;

[0045] Fig.14 A schematic diagram of the structure of the second state provided by the present invention;

[0046] Fig.15 A schematic diagram of the structure of the movable frame and the latch in cooperation with each other in the second state provided by the present invention;

[0047] Fig.16 for Fig.15 main view.

[0048] Description of reference numerals:

[0049] 11. body; 12. movable frame; 13. moving contact assembly; 14. stationary contact assembly; 15. button; 16. first reset member; 17. latch; 18. latch cover; 19. second reset member; 20. circuit board; 21. brush; 111. accommodating chamber; 112. base; 113. upper cover; 121. connecting rod; 122. actuator; 123. first matching portion; 124. second matching portion; 125. chamber; 126. fixing groove; 171. locking block; 1 72. bolt rod; 173. first limiting portion; 174. second limiting portion; 211. elastic extension portion; 1231. clearance groove; 1232. second clamping groove; 1233. hook; 1234. first clamping groove; 1241. support block; 1261. fixing block; 1731. baffle; 1732. first protrusion; 1733. limiting rib; 1741. slide groove; 1742. second protrusion; 12331. second inclined surface; 17331. first inclined surface. DETAILED DESCRIPTION

[0050] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0051] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0052] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0053] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0054] Example 1

[0055] This embodiment provides a signal switch with anti-locking and self-locking structures, as shown in the attached Figure 1-Figure 16 As shown, including:

[0056] The body 11 is provided with a receiving cavity 111 .

[0057] The movable frame 12 is accommodated in the accommodating chamber 111. The movable frame 12 reciprocates along the first direction. In this embodiment, the first direction is the vertical direction. Taking the three-dimensional coordinate axis as an example, the movable frame 12 reciprocates along the Z-axis direction. The movable frame 12 drives the dynamic contact component 13. Here, the body 11 also accommodates the static contact component 14. Through the cooperation of the dynamic contact component 13 and the static contact component 14, the switch is turned on or off. This is the prior art, so it is not described in detail in this embodiment. The movable frame 12 includes a connecting rod 121 and an actuator 122. One end of the connecting rod 121 is connected to the actuator 122, and the other end of the connecting rod 121 extends through the body 11 to the outside. Here, the connecting rod 121 extends upward to the outside along the first direction. The actuator 122 is provided with a first matching portion 123 and a second matching portion 124.

[0058] The first restoring member 16 is accommodated in the accommodating chamber 111. The first restoring member 16 cooperates with the movable frame 12. The cooperation here specifically means that one end of the first restoring member 16 abuts against the movable frame 12, and the other end of the first restoring member 16 abuts against the accommodating chamber 111. The first restoring member 16 applies a force to the movable frame 12. In this embodiment, the first restoring member 16 specifically abuts against the actuating member 122. At this time, the first restoring member 16 applies an upward force to the movable frame 12 along the first direction. When the movable frame 12 moves downward along the first direction, the first restoring member 16 will be squeezed. At this time, the first restoring member 16 continues to store energy. When the force applied to the movable frame 12 disappears, the first restoring member 16 will quickly release energy, driving the movable frame 12 to move upward along the first direction.

[0059] The bolt lock 17 is accommodated in the accommodating cavity 111. The bolt lock 17 reciprocates along the second direction. Here, the second direction is different from the first direction. The two are not located in the same direction. Here, the first direction and the second direction have an intersection. In this embodiment, the second direction is specifically located in the horizontal direction. Here, the X-axis direction is used as an example for description, that is, the bolt lock 17 reciprocates along the X-axis direction. The bolt lock 17 includes a locking block 171 and a bolt rod 172. The locking block 171 is connected to one end of the bolt rod 172. The other end of the bolt rod 172 passes through the body 11 to the outside. Here, the other end of the bolt rod 172 passes through the body 11 along the second direction. The locking block 171 is provided with a first limiting portion 173 and a second limiting portion 174. The first limiting portion 173 and the second limiting portion 174 are located in different directions. The first limiting portion 173 and the second limiting portion 174 are located in different orientations.

[0060] The second restoring member 19 is accommodated in the accommodating cavity 111 . The second restoring member 19 cooperates with the latch 17 . The second restoring member 19 applies a force to the latch 17 . Here, the second restoring member 19 is sleeved on the bolt rod 172 .

[0061] In the first state, the first limiting portion 173 cooperates with the first matching portion 123, the second limiting portion 174 cooperates with the second matching portion 124, the latch 17 restricts the movable frame 12 from moving in the first direction, and the switch is in the disconnected position. At this time, it is in the reverse locking position, and the movable frame 12 cannot move in the first direction, that is, the switch cannot be turned on. The first limiting portion 173 cooperates with the first matching portion 123, and the second limiting portion 174 cooperates with the second matching portion 124, and the movable frame 12 can move in the first direction, and the movable frame 12 is driven to move to the switch-on position. At this time, the switch is in the on state, that is, the switch is in action. At this time, the first limiting portion 173 cooperates with the first matching portion 123, and the second limiting portion 174 cooperates with the second matching portion 124, and the latch 17 restricts the movable frame 12 from moving in the first direction, forming the second state, which is the self-locking position, and the switch is in the on state, that is, the switch continues to work, and the operator does not need to press the button 15, and the switch is in a continuous working state. Compared with the prior art, this structure forms a synchronous limiting effect in multiple different directions, ensures the limiting in the anti-locking and self-locking process, improves the limiting strength and limiting effect, and also increases the service life of the signal switch.

[0062] Specifically, as attached Figure 5-Figure 16 As shown, the first limiting portion 173 and the second limiting portion 174 are vertically arranged, and the first limiting portion 173 and the second limiting portion 174 are connected. Here, the first limiting portion 173 and the second limiting portion 174 cooperate to form an L-shaped structure, that is, the locking block 171 is an L-shaped structure. In addition, the locking block 171 may also include a third limiting portion, and the third limiting portion cooperates with the first limiting portion 173 and the second limiting portion 174 to form a U-shaped structure, or the three limiting portions are respectively located on different surfaces and are vertically arranged between two. The first limiting portion 173 and the second limiting portion 174 on the locking block 171 are respectively connected to the movable frame 12 in a limiting manner, which enhances the stability of the locking between the locking block 171 and the movable frame 12. In addition, the first limiting portion 173 and the second limiting portion 174 can also be located on a plane, and the other can be arranged on an inclined surface.

[0063] Specifically, as attached Figure 5-Figure 16As shown, the first matching portion 123 is provided with a clearance groove 1231, a second clamping groove 1232, and a hook 1233. The first matching portion 123 is located on the side of the actuator 122 close to the latch 17. In this embodiment, the clearance groove 1231 opens up and down along the first direction. The side wall of the clearance groove 1231 close to the latch 17 is provided with a first clamping groove 1234. The position of the first clamping groove 1234 can be adjusted according to actual needs. The second clamping groove 1232 is located on the side of the first matching portion 123 close to the connecting rod 121. The second clamping groove 1232 extends toward the front side. The front side specifically refers to the Y-axis direction. The hook 1233 is located on one side of the second clamping groove 1232. The hook 1233 is located on the side of the second clamping groove 1232 close to the latch 17. The second matching portion 124 is provided with a support block 1241. The shape and size of the support block 1241 can be adjusted according to actual needs. In this embodiment, the support block 1241 is a long strip. The support block 1241 extends downward along the first direction. The first limiting portion 173 is provided with a baffle 1731 and a first protrusion 1732. The first protrusion 1732 is connected to the baffle 1731. Here, the first protrusion 1732 is specifically connected to the lower end of the baffle 1731. The first protrusion 1732 is located in the extension direction of the lower end of the baffle 1731, that is, the side of the first protrusion 1732 and the side of the baffle 1731 are coplanar. The baffle 1731 is provided with a limiting rib 1733. The second limiting portion 174 is provided with a slide groove 1741 and a second protrusion 1742. The second protrusion 1742 is located on one side of the slide groove 1741. In the first state, under the action of the first reset member 16 and the second reset member 19, the first protrusion 1732 abuts against the first slot 1234, and the support block 1241 abuts against the second protrusion 1742. At this time, the movable frame 12 cannot move downward along the first direction. When the latch 17 is pressed, the latch 17 moves along the second direction toward the accommodating cavity 111. At this time, the first protrusion 1732 and the baffle 1731 move into the clearance groove 1231. The baffle 1731 abuts against the side of the clearance groove 1231 away from the latch 17. At this time, the baffle 1731 cannot continue to move along the second direction toward the accommodating cavity 111. At this time, the baffle 1731 slides relative to the clearance groove 1231, that is, the baffle 1731 slides relative to the clearance groove 1231 along the first direction. The support block 1241 is located on the movement track of the slide groove 1741, that is, the support block 1241 is located below the slide groove 1741 in the first direction, and the support block 1241 slides relative to the slide groove 1741. The support block 1241 slides relative to the slide groove 1741. The support block 1241 slides relative to the slide groove 1741. The support block 1241 slides relative to the slide groove 1741 along the first direction. When the bolt lock 17 moves and abuts against the side of the yield groove 1231 away from the bolt lock 17, the movable frame 12 is pressed to make the movable frame 12 move downward in the first direction until the movable contact component 13 cooperates with the static contact component 14, and the switch is in the on state, that is, the second state. At this time, the limiting rib 1733 abuts against the second slot 1232, and the support block 1241 abuts against the bottom surface of the second limiting portion 174.Through the ingenious coordination of multiple structures, locking cooperation in different states is formed, meeting the functional requirements of anti-locking, self-locking, etc., and improving the overall limiting effect.

[0064] Specifically, the top surface of the side of the outer side wall of the main body 11 near the groove 1231 exceeds the top surface of the hook 1233, that is, the top surface of the side wall of the groove 1231 near the bolt cover 18, and the top surface here is specifically the uppermost surface in the first direction. The side wall of the groove 1231 forms a limiting effect to prevent the locking block 171 from excessive movement, that is, under the action of the second reset member 19, the locking block 171 can only slide to the outside of the groove 1231 through the first slot 1234, and the locking block 171 cannot be separated from the groove 1231 at other positions.

[0065] Specifically, the limiting rib 1733 extends to the first protrusion 1732. The length of the limiting rib 1733 is increased, and the contact area is increased, so that the limiting rib 1733 is better matched with the second slot 1232 to form a limiting effect.

[0066] Specifically, as attached Figure 12-16 As shown, the limiting rib 1733 is provided with a first inclined surface 17331, and the hook 1233 is provided with a second inclined surface 12331. The first inclined surface 17331 cooperates with the second inclined surface 12331. The cooperation here means that after the limiting rib 1733 enters the second slot 1232, the first inclined surface 17331 and the second inclined surface 12331 are correspondingly matched. At this time, the second inclined surface 12331 is located on the movement track of the first inclined surface 17331. Under the action of the second reset member 19, when the bolt 17 moves along the second direction toward the outside of the accommodating cavity 111, the first inclined surface 17331 and the second inclined surface 12331 are fitted to form a limiting effect. The cooperation between the inclined surfaces improves the reliability of the connection between the limiting rib 1733 and the second slot 1232 and the hook 1233.

[0067] Specifically, as attached Figure 8 As shown, the movable frame 12 is provided with a chamber 125 opening downward, and one end of the first reset member 16 extends to the chamber 125 and abuts against the movable frame 12. The provision of the chamber 125 prevents the first reset member 16 from twisting and deforming, limits the activity space of the first reset member 16 in the moving direction of the movable frame 12, and ensures the reliability of the reset of the movable frame 12. The depth of the chamber 125 can be adjusted according to actual needs. In this embodiment, the chamber 125 is provided on the bottom surface of the actuator 122.

[0068] Specifically, the maximum stroke of the movable frame 12 exceeds the stroke of the movable frame 12 moving to the switch-on position. The movable frame 12 is set to an over-stroke, and the movable frame 12 has an over-stroke downward along the first direction. For example, the maximum stroke of the movable frame 12 is 12 mm, and the stroke of the movable frame 12 moving from the first state to the switch-on position is 10 mm. At this time, the movable frame 12 has an over-stroke distance of 2 mm in the first direction, that is, continuing to press the movable frame 12 can make the movable frame 12 move 2 mm toward the bottom surface of the accommodating chamber 111. In this embodiment, the over-stroke is specifically achieved by the first reset member 16, that is, when the movable frame 12 moves to the switch-on position, the first reset member 16 can continue to be compressed. When reaching the self-locking position, pressing the movable frame 12 again can release the limit lock between the movable frame 12 and the bolt 17, thereby avoiding the phenomenon of the limit lock being stuck after self-locking.

[0069] Specifically, the first reset member 16 is a straight spring or a conical spring. The second reset member 19 is a straight spring or a conical spring. Those skilled in the art can select different spring structures according to actual needs.

[0070] Specifically, it also includes a button 15, which is connected to the portion of the connecting rod 121 extending outside the body 11, and the button 15 drives the movable frame 12 to move to turn on or off the switch. Here, the button 15 also moves along the first direction, thereby achieving the effect of driving the movable frame 12 to move. In addition, the driving effect of the movable frame 12 can also be achieved by other components.

[0071] Specifically, the bolt cover 18 is connected to the portion of the bolt cover 18 extending to the outside of the body 11 with the bolt rod 172. When the bolt cover 18 is pressed, the bolt cover 18 will drive the bolt lock 17 to move toward the accommodating cavity 111, thereby achieving a limit locking effect between the bolt lock 17 and the movable frame 12. In addition, the driving effect of the bolt lock 17 can also be formed by other components. In this embodiment, one end of the second reset member 19 abuts against the body 11, and the other end of the second reset member 19 abuts against the bolt cover 18. When the bolt cover 18 drives the bolt lock 17 to move, the second reset member 19 will be squeezed and deformed, and the second reset member 19 will continue to store energy. When the force applied to the bolt cover 18 disappears or the movable frame 12 releases the limit locking between the bolt lock 17, the second reset member 19 quickly releases energy, driving the bolt cover 18 and the bolt lock 17 to return to the initial position. In addition, the bolt rod 172 can also be provided with a convex structure to form a compression drive of the second reset member 19.

[0072] Specifically, the body 11 includes a base 112 and an upper cover 113, which are connected and fixed to form a receiving cavity 111. The base 112 and the upper cover 113 can be connected by bolts, snap-on connections, ultrasonic welding, etc.

[0073] Specifically, it also includes a circuit board 20, and the movable frame 12 is fixed with a brush 21, and the brush 21 slides on the circuit board 20. The brush 21 moves on the circuit board 20, which plays a signal transmission effect, and the circuit board 20 can know which position the movable frame 12 moves to.

[0074] Specifically, the movable frame 12 is provided with a fixing groove 126, the fixing groove 126 is provided with a fixing block 1261, the brush 21 is accommodated in the fixing groove 126, and the brush 21 is connected and fixed to the fixing block 1261. The setting of the fixing groove 126 and the fixing block 1261 can better achieve the fixing effect of the brush 21. Here, the brush 21 is also provided with an elastic extension part 211, and the elastic extension part 211 is against the side wall of the fixing groove 126 to form an elastic fixing effect, so that the brush 21 is fixed in different directions, and the fixing strength of the brush 21 is improved.

[0075] Specifically, the connecting rod 121 and the actuating member 122 are integrally formed, and the locking block 171 and the bolt rod 172 are integrally formed. In addition, a sealing structure can be added to the movable frame 12 and the bolt lock 17 to improve the sealing effect of the entire switch.

[0076] Specifically, the working process of the present structure is as follows: in the first state, that is, the anti-locking position, under the action of the first reset member 16 and the second reset member 19, the actuator 122 is located near the top surface of the accommodating chamber 111, and the movable frame 12 does not drive the movable contact component 13 to cooperate with the static contact component 14. At this time, the switch is in the disconnected state, the first protrusion 1732 is abutted against the first slot 1234, and the second protrusion 1742 is located below the support block 1241, so that the movable frame 12 cannot move downward along the first direction. Only when the limit locking relationship is released can the movable frame 12 move downward along the first direction.

[0077] By pressing the bolt cover 18, the bolt cover 18 drives the bolt lock 17 to move toward the accommodating chamber 111 along the second direction. Here, the accommodating chamber 111 specifically refers to the bolt lock 17 moving toward the side of the movable frame 12, because the movable frame 12 is located at the center of the accommodating chamber 111. After the bolt lock 17 moves, the first protrusion 1732 and the baffle 1731 move into the clearance groove 1231, and the baffle 1731 abuts against the side of the clearance groove 1231 away from the bolt lock 17. At this time, the baffle 1731 cannot continue to move toward the accommodating chamber 111 along the second direction. At this time, the baffle 1731 slides relative to the clearance groove 1231 along the first direction; synchronously, the second protrusion 1742 moves together. At this time, the support block 1241 is located on the movement track of the slide groove 1741, that is, the support block 1241 is located below the slide groove 1741 in the first direction, and the support block 1241 slides relative to the slide groove 1741 along the first direction. At this time, the latch 17 releases the limit lock on the movable frame 12, and the movable frame 12 can move downward along the first direction. It should be noted that during the movement of the latch 17, the second reset member 19 is pressed, so that the second reset member 19 continues to store energy.

[0078] When the bolt 17 moves to the right position, the force applied to the bolt cover 18 cannot be withdrawn, so that the bolt 17 remains in this position. At this time, the button 15 is pressed to make the movable frame 12 move downward along the first direction, and move to a certain position so that the movable contact component 13 and the static contact component 14 are connected and matched. The button 15 is continued to be pressed downward (overtravel) until the movable frame 12 can no longer move downward. At this time, the bolt 17 is located above the actuator 122. Since the force applied to the bolt cover 18 is not withdrawn, the bolt 17 continues to move toward the movable frame 12 along the second direction until the baffle 1731 is against the connecting rod 121 and cannot move. When the latch 17 cannot continue to move along the second direction toward the movable frame 12, and the movable frame 12 cannot continue to move downward, the force applied to the button 15 is first canceled. Due to the action of the first reset member 16, the movable frame 12 moves upward along the first direction, the limiting rib 1733 abuts against the second slot 1232, and the support block 1241 abuts against the bottom surface of the second limiting portion 174, so that the movable frame 12 is locked again. The movable frame 12 can only move a short distance before being limited and locked. It can also be considered that the movable frame 12 moves upward to the switch connection position and is limited and locked. The force applied to the bolt cover 18 is cancelled, and the second reset member 19 is in the energy storage state. When the limiting rib 1733 abuts against the second slot 1232, the hook 1233 restricts the limiting rib 1733 from moving outward along the second direction. At this time, the bolt lock 17 is also locked and cannot move, forming the second state, that is, the self-locking position. There is no need to press the button 15 or the bolt cover 18. At this time, the switch is always in the on position. In the self-locking position, the first reset member 16 and the second reset member 19 are both in the energy storage state.

[0079] When releasing the self-locking function, a force is first applied to the button 15 (no force is applied to the bolt cover 18) to drive the movable frame 12 to move downward (overtravel), and the limiting rib 1733 moves to the top of the second slot 1232. A gap is formed between the support block 1241 and the bottom surface of the second limiting portion 174. At this time, the bolt 17 is unlocked. Under the action of the second reset member 19, the bolt 17 slides outward along the second direction, and the baffle 1731 re-enters the clearance groove 1231. The baffle 1731 and the side wall of the clearance groove 1231 close to the bolt cover 18 are abutted to form a limit. In this state, the baffle 1731 can Sliding relative to the give way slot 1231, the support block 1241 can slide relative to the slide slot 1741, canceling the force applied to the button 15, and the movable frame 12 moves upward along the first direction. The moving contact component 13 is separated from the static contact component 14, forming the disconnection of the switch. When the first protrusion 1732 moves to a position close to the first slot 1234, under the action of the second reset member 19, the first protrusion 1732 moves along the second direction toward the side of the bolt cover 18, so that the first protrusion 1732 enters the first slot 1234 and abuts against the first slot 1234. At this time, the entire switch re-enters the first state, that is, the anti-lock position.

[0080] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention.

Claims

1. A signal switch with anti-locking and self-locking structure, characterized in that: include: A body (11), wherein the body (11) is provided with a receiving cavity (111); A movable frame (12), the movable frame (12) being accommodated in the accommodating cavity (111), the movable frame (12) reciprocating along a first direction, and the movable frame (12) driving the movable contact assembly (13); the movable frame (12) comprising a connecting rod (121) and an actuating member (122), one end of the connecting rod (121) being connected to the actuating member (122), the other end of the connecting rod (121) passing through the body (11) and extending to the outside, and the actuating member (122) being provided with a first matching portion (123) and a second matching portion (124); A first restoring member (16), the first restoring member (16) being accommodated in the accommodating cavity (111), the first restoring member (16) cooperating with the movable frame (12), and the first restoring member (16) imparting an acting force to the movable frame (12); A bolt lock (17), the bolt lock (17) is accommodated in the accommodating cavity (111), and the bolt lock (17) reciprocates along the second direction; the bolt lock (17) comprises a locking block (171) and a bolt rod (172), the locking block (171) is connected to one end of the bolt rod (172), and the other end of the bolt rod (172) passes through the body (11) and extends to the outside, and the locking block (171) is provided with a first limiting portion (173) and a second limiting portion (174), and the first limiting portion (173) and the second limiting portion (174) are located in different directions; a second restoring member (19), the second restoring member (19) being accommodated in the accommodating cavity (111), the second restoring member (19) cooperating with the latch (17), and the second restoring member (19) imparting a force to the latch (17); In the first state, the first limiting portion (173) cooperates with the first matching portion (123), the second limiting portion (174) cooperates with the second matching portion (124), the latch (17) limits the movement of the movable frame (12) in the first direction, and the switch is in the disconnected position; the cooperation between the first limiting portion (173) and the first matching portion (123), and the second limiting portion (174) and the second matching portion (124) is released, the movable frame (12) moves in the first direction, the switch is in the connected position, the first limiting portion (173) cooperates with the first matching portion (123), the second limiting portion (174) cooperates with the second matching portion (124), the latch (17) limits the movement of the movable frame (12) in the first direction, and the second state is formed.

2. The signal switch with anti-locking and self-locking structure according to claim 1, characterized in that: The first limiting portion (173) and the second limiting portion (174) are arranged vertically, and the first limiting portion (173) and the second limiting portion (174) are connected.

3. The signal switch with anti-locking and self-locking structure according to claim 1, characterized in that: The first matching portion (123) is provided with a yielding groove (1231), a second clamping groove (1232), and a hook (1233); the side wall of the yielding groove (1231) is provided with a first clamping groove (1234), and the hook (1233) is located on one side of the second clamping groove (1232); the second matching portion (124) is provided with a supporting block (1241); the first limiting portion (173) is provided with a baffle (1731) and a first protrusion (1732), the first protrusion (1732) is connected to the baffle (1731), and the baffle (1731) is provided with a limiting rib (1733); the second limiting portion (174) is provided with a sliding groove (1741) and a second protrusion (1742), and the second protrusion (1742) is located at the one side of the slide groove (1741); in the first state, the first protrusion (1732) abuts against the first card groove (1234), and the support block (1241) abuts against the second protrusion (1742); the latch (17) is pressed, the baffle (1731) is located in the give way groove (1231), and the baffle (1731) slides relative to the give way groove (1231), the support block (1241) is located on the movement trajectory of the slide groove (1741), and the support block (1241) slides relative to the slide groove (1741); in the second state, the limiting rib (1733) abuts against the second card groove (1232), and the support block (1241) abuts against the bottom surface of the second limiting portion (174).

4. The signal switch with anti-locking and self-locking structure according to claim 3, characterized in that: The top surface of the clearance groove (1231) on the side close to the outer wall of the main body (11) exceeds the top surface of the hook (1233).

5. The signal switch with anti-locking and self-locking structure according to claim 3, characterized in that: The limiting rib (1733) extends to the first protrusion (1732).

6. The signal switch with anti-locking and self-locking structure according to claim 3, characterized in that: The limiting rib (1733) is provided with a first inclined surface (17331), and the hook (1233) is provided with a second inclined surface (12331), and the first inclined surface (17331) cooperates with the second inclined surface (12331).

7. The signal switch with anti-locking and self-locking structure according to claim 1, characterized in that: The movable frame (12) is provided with a chamber (125) opening downward, and one end of the first reset member (16) extends to the chamber (125) and abuts against the movable frame (12).

8. The signal switch with anti-locking and self-locking structure according to claim 1, characterized in that: The maximum stroke of the movable frame (12) exceeds the stroke of the movable frame (12) moving to a switch-on position.

9. The signal switch with anti-locking and self-locking structure according to claim 1, characterized in that: It also includes a circuit board (20), and the movable frame (12) is fixed with a brush (21), and the brush (21) slides on the circuit board (20).

10. The signal switch with anti-locking and self-locking structure according to claim 9, characterized in that: The movable frame (12) is provided with a fixing groove (126), the fixing groove (126) is provided with a fixing block (1261), the brush (21) is accommodated in the fixing groove (126), and the brush (21) is connected and fixed to the fixing block (1261).

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